Manifolding attachment for typewriters



g- 13, 1929- F. DOVERSPIKE 1,724,698

MANIFOLDING ATTACHMENT FOR TYPEWRITERS Original Filed Jan. 29, 1923 5 Sheets-Sheet l 21 2 22G) Q ZZ m 1 L 2" =51? 79 I A d z 2 6 ML: i 3 6 I'm/en for FEM/K00 VE/PJP/KE ATTORNEYS Aug. .13, 1929. F. DOVERSPIKE I 5 8 IANIFOLDING ATTACHMENT FOR TYPE-WRITERS Original Filed Jan. 29. 2 3 Sheets-Sheet 2 [n V672 for FRA/V/(DO VE/PJP/KE Aug. 13, 1929. F. DOVERSPIKE 1,724,598

IANIPOLDING ATTACHMENT FOR TYPEWRITERS Original Filed Jan. 29, 1923 :5 Shets-Sheet a [22 V6 71, 2502 FQANKDO VEESP/KE ATTOENE Y5 Patented Aug. ,13, 1929.

UNITED STATES FRANK DOVEBSPIKE, OF CHICAGO, ILLINOIS.

MANIFOLDING ATTACHMENT FOR-TYPEWRITERS.

Application filed January 29, 1923, Serial The object of my invention is to provide a manifolding attachment which can be easily and quickly applied to the platen carriage of a typewriter without any alterations or adjustments and as readily removed at any time. Generally speaking, manifolding on the platen carriage ready for delivery of the manifolding ribbon to its working position and almost instantly detached from the carriage when the manifolding operation is completed or when, for any purpose, it is desired to remove the attachment from the machine. s

Other objects ofthe invention will appear from the following detailed description.

The invention consists generally in various constructions and combinations all as hereinafter described and particularly pointed out in the claims.

In the accompanying drawings forming part of this specification,

Figure 1 is a plan view of-a typewriter platen carriage with my invention applied thereto; 4

Figure 2 is a sectional view on the line 22 of Figure 1 showing the manifolding ribbon in its raised non-working position; Figure 3 is a similar view.showing the 5 ribbon moved down to its working position; Figure 4 is an end view of the attachment; Figure 5 isa sectional view on 55 of Figure 4;

Figure 6 is a plan view of theattachment removed from the machine; V

Figure 7 is a front View; the Working position of the ribbon being indicated in dotted lines;

Figure 8 is a perspective view showing the preferred manner of mounting the workin ribbon and the non-working or guar ribbon;

Figure 9 is a perspective view showing in detail the preferred manner of connect- 'ing the attachment to the frame of the platen carriage.

-In the drawings, 2 represents the end rails of the platen carriage; 3, the machine platen; 4, the typewriter ribbon, and 5, the

the line No. 615,647. Renewed. October 19,1928.

spools on which the ribbon is wound, all of any ordinary or preferred construction;

My attachment comprises end bars 5 preferably of flattened material, adapted to rest upon the top of the rails2, and having holes 2 to receive the screw heads 2 which prevent the bars from sliding endwise on the carriage. Springs 6, flattened in form, are seated upon the top of the bars 5, and clips 7 are mounted on these springs to extend down outside the rails 2 of the platen carriage and have inwardly turned lower ends 8 which snap under the lower edges of the rails 2 and firmly hold the attachment in place on the platen carriage, while allowing it to be easily and quickly separated therefrom by springing the clips 7 outwardly away from the engaging rails of the platen carriage.

Upon the bars 5, upwardly extending standards 9 are mounted, preferably hollow and forming vertical guides for rack bars 10. A shaft 11 has hearings in said standards and gears 12 are mounted on said shaft to mesh with the teeth of the rack bars 10, said shaft projecting outwardly beyond said standards and having finger grips 13 by meansof which said shaft ma be rotated and the rack bars 10 raised or lowered in their guideways as desired.

The lower ends of the rack bars are provided with depending arms 14 having longitudinal slots 15 therein forming fingers 16 and 17. The fingers 16 are connected across the attachment by a flexible stationary ribbon 18 which is not mounted for longitudinal movement but is intended as a guard to prevent the manifolding ribbon proper from contacting with and smearing the rear surface of the sheet of paper upon which the type of the machine is operating. This ribbon is preferably connected to the arm 16 by forming loops in its ends through which the depending fingers are inserted; the ribbon moving vertically with the rack bars between its working and non-working positions and at all times lying between the printing ribbon and the rear face of the original sheet of paper in the machine. 19 represents the printing ribbon which is stretched between arms 14 to register with the ribbon 18 and is carried around the arm 17 and from thence to small pulleys 20 and spools or reels 21 which are mounted on the bars 5 and have suitable cranks 22 bylmeans of which the ribbon may be moved from one spool or reel to the other and thereby pre sent fresh or new surfaces to the action of the type. To hold this prefer to provide jaw'clips23, pivoted at 24 on the lower ends of'the arms 17 and adapted to straddle the-arms and: clamp the printing ribbon thereon, holding it securely in its working position and preventslippage thereof while the device is in'use.

The normal position of the ribbon when,

the attachment is mounted on the machine is indicated .in Figure 2, the ribbonbeing horizontal, and in this position the shifting operation of' the ribbon is performed.

This Figure 2 also illustrates the original page or sheetfof the workindicated by numeral 25 and the page or sheet 26 upon which the carbon copy or duplicate 'is to be rinted. These sheets will be separated.

I as indicated in Figure 2 and the operator desiring to make a manifold copy will manipulate the shaft 11 and lower the manifolding ribbon to its working position opposite the typewriter ribbon 4. This movement of the manifolding ribbon will interpose the guard ribbon 18 between it and the back of the original sheet, preventing smearing thereof, while the manifolding ribbon will be in position to pression of the type upon the surface of the manifolding or duplicate sheet of paper 26' when the keys are operated. This duplica tion will continue as long as desired or until the operator manipulates the shaft 11. in the other direction and raises the manifolding ribbon to its upper or non-working position.

- the As heretofore stated, theshifting of the manifolding ribbon is accomplished in this raised position, as obviously it would not be practicable to move it longitudinallywhen in the position shown in Figure 3 owbeing on a different level ingto the spools than the working section of (the ribbon. Whenever desired, the operator may grasp finger grips 27 and detach the device from the platen carriage.

I claim as my invention: 1 A manifolding attachment for typewriters placed upon a typewriter. platen carriage,

and comprising bars having flat under surfaces for fitting the flat upper surfaces of the end rails of saidcarriage, spring clips mounted on said bars and having inwardly turned lower ends to engage the lower edges of the end rails of said carriage for temporarily holding said bars and carriage together, a manifolding ribbon, and means for moving said ribbon up and down in a vertical plane to its working and non-working positions.

2. A manifolding attachment for typeprinting ribbon in place, I I

make an im-' arms, spools mounted 'on of the typewriter.

comprising a frame adapted to be writers comprising a frame adapted to be mounted upon a typewriter platen carriage, and provided with pairs of depending arms having slotted-lower endsforming pairs of fingers, a manifolding ribbon arranged to engage one air of fingers in a vertical plane, and aflexih tween said manifolding ribbon and the rear surface of. the machine;

-3. A manifolding attachment for typewriters comprising a frame adapted to be secilredto a typewriter platen carriage, vertfcallyv movable members mounted in guides in said frame and gaging one of the fingers of said arms, and stretched between said arms, and movable longitudinally on said spools to present fresh manifolding surfaces to the work, that arms being on a level substantially with said spoolswhen said members are raised, and

e guard having loops. to receive the other pair of fingers and positioned beoriginal sheet of paper in the.

having depending slotted arms, spools mounted on said frame, a manifolding ribbon connected therewith and enportion of the ribbon stretched between said below the level of said spools when said members are moved downwardly to the working position of said ribbon, 'and clips tion of theribbon stretched between said arms being on a level substantially with said members are raised, and v sp'ools when said below-the level of said spools when said members are moved downwardly to the working position of ribbon connecting the other forks of said arms, and positioned between said Qmanifolding ribbon and the rear surfaceiof the original sheet of paper in the-machine.

5. A manifolding attachment for typewriters comprising a frame adapted to be secured to a typewriter platen carriage, ver

. tically movable members mounted in guides in said frame and having depending slotted arms forming pairs of fingers, spools mount ed on said frame, a manifolding ribbon connected therewith and engaging one pair of said fingers and stretched between said arms and movable longitudinally on said spools to present fresh manifolding surfaces 'to the. work, and a guard ribbon connecting the other pair of fingers of said arms.

t i..A manifolding attachment for typewriters comprising a frame adapted to'be said arms, and movabletypewriter platen carriage, ver

said ribbon, and a guard placed upon a typewriter platen carriage, and comprising bars having surfaces for ting the end rails of said carriage, said bars having holes to receive screw-heads in said end rails, spring clips on said bars for engaging said rails and temporarily securing them and said bars, together and allowing quick attachment to said carriage or removal therefrom, and a manifolding ribbon mounted for adjustment between, the original and copy sheets.

7. A manifolding attachment for type-' writers comprising a frame adapted to be placed upon the rails' of a typewriter platen carriage, means for securing said frame and carriage together,-spools mounted in said frame, a manifolding ribbon connected to said spools, vertically movable supports for said ribbon mounted on said 'frame, means for raising and lowering said supports to adjust said ribbon in its working and nonworking positions, and means for clamping said ribbon in its supports to prevent premature slippage thereof.

8. A manifolding attachment for typewriters comprising a frame adapted to be secured to a typewriter platen carriage, vertically movablemembers mounted in guides in said frame and having depending slotted arms forming fingers, spools mounted on said frame, a manifolding ribbon connected therewith and engaging one of the fingers of said armsand stretched between said arms and movable longitudinally on said spools to present fresh manifolding surfaces to the work, and means for clamping said ribbon on said arm fingers.

9. A manifold attachment for typewriters comprising a frame adapted to be mounted upon a typewriter platen carriage, and providing two pairs of depending fingers, a manifolding ribbon arranged to slidably engage one finger of each pair and a guard ribbon in opposition to said manifolding rib-- bon held by the other fingers of each pair, and removable therefrom, by sliding downwardly.

In witness whereof, I have hereunto set my hand this 26th day of January, 1923.

FRANK DOVERSPIKE.- 

